[cfe-dev] problem with clang application

[Nobin Mathew]

Is there any problem in this code fragment

     scope.sm.createMainFileID(File, SourceLocation());
       scope.pp->EnterMainSourceFile();
       IdentifierTable identitab(scope.lang);
       MinimalAction action(*(scope.pp));
       Parser parse(*(scope.pp), action);
       parse.ParseTranslationUnit();
       identitab.PrintStats();

I am not able to find the problem in the library, any help?

-Nobin

On Sat, Jun 19, 2010 at 3:27 PM, Nobin Mathew <nobin.mathew at gmail.com> wrote:
> Hi,
>
> I am building an application using clang libraries, I running to a
> problem, it will be very helpful if somebody can give some directions.
>
> #./a.out /home/nmathew/Desktop/algorithms/array.cpp     gives
>
> In file included from /home/nmathew/Desktop/algorithms/array.cpp:1:
> In file included from /usr/include/c++/4.4.3/iostream:39:
> In file included from /usr/include/c++/4.4.3/ostream:39:
> In file included from /usr/include/c++/4.4.3/ios:38:
> In file included from /usr/include/c++/4.4.3/iosfwd:40:
> /usr/include/c++/4.4.3/bits/stringfwd.h:49:48: error: unknown type
> name 'char_traits'
> a.out: TextDiagnosticPrinter.cpp:293: void
> clang::TextDiagnosticPrinter::EmitCaretDiagnostic(clang::SourceLocation,
> clang::SourceRange*, unsigned int, const clang::SourceManager&, const
> clang::FixItHint*, unsigned int, unsigned int, unsigned int, unsigned
> int, unsigned int): Assertion `LangOpts && "Unexpected diagnostic
> outside source file processing"' failed.
> Stack dump:
> 0.      /usr/include/c++/4.4.3/bits/stringfwd.h:49:48: current parser token
> 'char_traits'
>
>
>
>
> My Include search directories are below.
>
> #include "..." search starts here:
> #include <...> search starts here:
>  /usr/include/linux
>  /usr/lib/gcc/i686-redhat-linux/4.4.3/include
>  /usr/include/c++/4.4.3
>  /usr/include/c++/4.4.3/backward
>  /usr/include/c++/4.4.3/i686-redhat-linux
>  /usr/local/include
>  /usr/include
> End of search list.
>
> and char_traits.h is in /usr/include/c++/4.4.3/bits/, I am using
> Fedora 12 32 bit system.
>
>
>
> my files are
>
> #cat tut01_pp.cpp
>
>
> #include "PPContext.h"
>
> int main(int argc, char *argv[])
> {
>        if (argc != 2)
>        {
>                cerr << "No File input " << endl;
>                return 0;
>        }
>        PPContext scope;
>        scope.headers.PrintStats();
>        const FileEntry *File = scope.fm.getFile(argv[1]);
>        if(!File)
>        {
>                cerr << "File Open Failed\t" << argv[1] << endl;
>                return 0;
>        }
>        scope.sm.createMainFileID(File, SourceLocation());
>        scope.pp->EnterMainSourceFile();
>        IdentifierTable identitab(scope.lang);
>        MinimalAction action(*(scope.pp));
>        Parser parse(*(scope.pp), action);
>        parse.ParseTranslationUnit();
>        identitab.PrintStats();
>
>        return 0;
> }
>
>
> #cat PPContext.h
>
>
> #ifndef PP_CONTEXT
> #define PP_CONTEXT
>
> #include <iostream>
> #include <string>
> using namespace std;
>
> #include <llvm/Support/raw_ostream.h>
>
> #include <clang/Basic/Diagnostic.h>
> #include <clang/Basic/TargetInfo.h>
> #include <clang/Basic/TargetOptions.h>
> #include <clang/Basic/FileManager.h>
> #include <clang/Basic/SourceManager.h>
> #include <clang/Lex/Preprocessor.h>
> #include <clang/Lex/HeaderSearch.h>
> #include <clang/Frontend/Utils.h>
> #include <clang/Frontend/TextDiagnosticPrinter.h>
> #include <clang/Frontend/DiagnosticOptions.h>
> #include <clang/Frontend/HeaderSearchOptions.h>
> #include <clang/Parse/Action.h>
> #include <clang/Parse/Parser.h>
> #include "llvm/System/Host.h"
> using namespace clang;
> using namespace llvm;
>
> struct PPContext {
>        PPContext():tdp(ost, options), diag(&tdp), sm(diag), headers(fm)
>        {
>
>                TargetOptions target_options;
>                target_options.Triple = sys::getHostTriple();
>                target_options.CXXABI = "itanium";
>                target = TargetInfo::CreateTargetInfo(diag, target_options);
>                lang.CPlusPlus = 1;
>                pp = new Preprocessor(diag, lang, *target, sm, headers);
>                headeropts.EnvIncPath = "/usr/include/linux";
>                headeropts.CXXEnvIncPath =
> "/usr/lib/gcc/i686-redhat-linux/4.4.3/include/";
>                headeropts.Verbose = 1;
>                ApplyHeaderSearchOptions(headers, headeropts, lang,
> llvm::Triple(target_options.Triple));
>        };
>        ~PPContext()
>        {
>                delete pp;
>                delete target;
>        };
>
>        llvm::raw_stdout_ostream ost;
>        const DiagnosticOptions options;
>        TextDiagnosticPrinter tdp;
>        Diagnostic diag;
>        LangOptions lang;
>        SourceManager sm;
>        FileManager fm;
>        HeaderSearch headers;
>        TargetInfo *target;
>        Preprocessor *pp;
>        HeaderSearchOptions headeropts;
> };
> #endif //#ifndef PP_CONTEXT
>
>
> #cat array.cpp
>
> #include <iostream>
> #include "array.hpp"
>
> using namespace std;
>
>
>
> template <class gen>
> ARRAY<gen>::ARRAY()
> {
>        size = MAX;
>        ptr = (gen (*)[MAX])new gen[size];
> }
>
> template <class gen>
> ARRAY<gen>::ARRAY(int array_size)
> {
>        size = array_size;
>        ptr = (gen (*)[])new gen[size];
> }
>
> template <class gen>
> ARRAY<gen>::~ARRAY()
> {
>        delete (gen (*)[MAX])ptr;
> }
>
> template <class gen>
> int ARRAY<gen>::getsize()
> {
>        return size;
> }
>
> template <class gen>
> ARRAY<gen>::ARRAY(const ARRAY &orig)
> {
>        ptr = (gen (*)[MAX])new gen[orig.size];
>        memcpy(ptr, orig.ptr, sizeof(gen)*orig.size);
>        size = orig.size;
> }
>
> template <class gen>
> gen& ARRAY<gen>::operator [](unsigned int index)
> {
>        return *ptr[index];
> }
>
> int main(void)
> {
>        ARRAY <int> intarray;
>        intarray[8] = 16;
>        return 0;
> }
>
>
> thanks
> Nobin
>